13 letters · 19 points in Scrabble
noun a heavy yellow poisonous oily explosive liquid obtained by nitrating glycerol; used in making explosives and medically as a vasodilator (trade names Nitrospan and Nitrostat)
originEtymology tree Egyptian nṯrjder. Semiticbor. Ancient Greek νῐ́τρον (nĭ́tron) English nitro- English glycerin English nitroglycerin From nitro- + glycerin.
Etymology from Wiktionary, CC BY-SA 3.0